Vaporcompression evaporation is the evaporation method by which a blower, compressor or jet ejector is used to compress, and thus, increase the pressure of the vapor produced. In the vapourcompression system, heat is provided by the compression of vapour rather than by direct heat input from a boiler. Holtzapple the ability to produce potable water economically is the primary purpose of seawater desalination research. Since then, weve refined and improved the technology to deliver highquality potable drinking water and distilled water in some of the worlds harshest environments. Vaporcompression evaporation is the evaporation method by which a blower, compressor or. Vapor compression distillation pharma vapor compressions. Vapor compression distillation vc is a process used to produce water for injection wfi on the principle of distillation, where the water is distilled with phase change and entrainment separation. This investigates a highefficiency mechanical vaporcompression distillation system that employs an improved water flow arrangement. Vapor compression distillation pharma vapor compressions stills.
Incoming water influent enters the system and runs through two heat exchangers which transfer heat to the influent from the outgoing pure water distillate and grey water concentrate. Vaporcompression evaporation news newspapers books scholar. Desalination, 311979 544 elsevier scientific publishing company, amsterdam printed in the netherlands vapor compression distillation samuel j. This book is great to refer to when designing a distillation column in a. Design considerations for wfi distillation systems part 1 ispe. When the vapour is rapidly compressed, its temperature rises. Introduction the vapor compression distillation process can be designed as a low capital cost and corresponding low performance ratio about 7 ibs product per kbtu or as a higher capital cost and higher pr about 31 plant. It addresses the most important and current research on. This compressed vapor is then condensed to produce wfi by. Where traditional design texts have focused mainly on the steadystate economic aspects of distillation design, william luyben also addresses such. Greater efficiency of the vapor compression system is achieved by connecting multiple evaporators in series, rather than the traditional parallel arrangement. The first five books every chemical engineer should get right out. Refinery this section is for refinery, oil refining,refining and distillation books, here you can find many books about trays and packed columns.
Senatore ebasco services incorporated, 2 sector st. Pharmaceutical vapor compression distillation vcd, improperly known as thermocompression or such as mechanical vapor recompression mvr or mechanical vapor compression mvc distillation, too, is the main way to produce wfi water for injection and grade waters for pharmaceutical use. In this paper, the case study was extended to include an expanded search space, inclusion of utility streams and practical design criteria. In terms of distillation, vapor compression, or vc, refers to mechanical vapor. Iss water recovery system, vapor compression distillation. Some of the compressed and heated vapour is then recycled through a series of tubes passing through. In 1939, meco patented the vapor compression process for the desalination of saltwater.
Design of distillation column control systems 1st edition elsevier. More precisely, vcd systems allow to obtain water for i. Since the pressure increase of the vapor also generates an increase in the condensation temperature, the same vapor can serve as the heating medium for its mother liquid or solution being concentrated, from which the. Most available books in chemical engineering mainly pertain to continuous processes, with batch distillation relegated to a small section. Nasa vapor compression distillation vcd flight experiment. Pdf distillation design mechanical engineering download. A vapor compression cycle is utilized to distill product water. Vapor compression distillation numbers reference the points in the diagrams above and below 1. Meco is the leading manufacturer of vapor compression distillation systems for the. Unlike other purification processes that require multiple steps chemical treatment, filtration, reverse osmosis, forward osmosis, mbr, ultraviolet each used to target and. Meco vapor compression stills feature the gii centurbo compressor for pharmaceutical.
This book is a worthy sequel to the authors previous excellent book distillation operation. Just go to the compression tab in the gpsa and it has an explanation. Mechanical vapor compression distillation of saline water is a process in which mechanical energy is used as the main driving force. It is a very impressive work covering almost all aspects of process. Which compressed air system design is right for you. In the vc process, the vapor produced by evaporating the water is compressed to increase the saturation pressure and temperature. The low pr plant is designed with a maximum brine temperature of about requiring on ly a polyelectrolyte scale inhibitor. The methods specifically in question are multipleeffect distillation and vapor compression distillation.
Aquabacks thin film vapor compression distillation technology utilizes over 50 years of combined water purification and heat transfer technology knowledge to deliver the next generation of water purification solutions. Design and operation series on chemical engineering. A refrigerant design problem for a vapor compression refrigeration cycle was presented previously gani et al. Other articles where vapour compression distillation is discussed. The design problem concerns the replacement of r4a refrigerant. This report explains what to consider when designing a. The vapor compression distillation vcd flight experiment, managed by nasas marshall space flight center in huntsville, ala. It is basically a heat pump process that pumps heat from a lowtemperature reservoir to a higher temperature reservoir, just as in household refrigerators where the heat is pumped from the air inside the refrigerator box to the ambient air outside of the box. Download biopharmaceutical vapor compression ebook. Purchase design of distillation column control systems 1st edition.
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